• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources cider press projects digital market permies.com pie forums private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Carla Burke
  • John F Dean
  • Nancy Reading
  • r ranson
  • Anne Miller
  • Jay Angler
stewards:
  • Pearl Sutton
  • paul wheaton
  • Leigh Tate
master gardeners:
  • Timothy Norton
  • Christopher Weeks
gardeners:
  • Tina Wolf
  • Matt McSpadden
  • Jeremy VanGelder

3 phase DC brush-less motor for wind turbine

 
Posts: 217
Location: Ontario
13
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Hello, I am using a 3 phase brush-less dc motor for a home made wind turbine, and I have a question about what to use for a battery charger. The motor by itself will produce higher voltages than the average cheap charge controller can handle. The motor is designed to use 200 - 300 volts at very high speeds. I think that at average wind speeds around 10 to 20 kmph, it may produce anywhere from 12 to 200 volts. I could use high speed blades, with the motor as it is, to achieve high voltage low amperage, or rewire the motor to produce lower voltage and higher amps at lower speeds.

1) Should I rewire the motor to produce low voltage high amps, and run through a inexpensive 12 or 24 charger, or leave it as high voltage and use a Mppt charger rated for 200 - 300 input volts?


2) Also if anyone has used one of these washing machine motors before for a wind turbine, what did you use for a hub to attach blades to the axle/spindle of the axle, bearing, motor assembly?
 
Posts: 43
Location: Welland, Ontario, Canada
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Steve, Your description does not make sense. You either have a 3 phase AC motor or a DC motor. ( You can not have a 3 phase DC motor) Give me the motor nameplate data and I might be able to give you some suggestions.
 
Why is your dog always so ... moist? Check this tiny ad for some sort of cure:
Come visit Wheaton Labs - SEPPing at Basecamp for 40% off if you arrive before May 10th!
https://permies.com/wiki/251726/visit-Wheaton-Labs-SEPPing-Basecamp
reply
    Bookmark Topic Watch Topic
  • New Topic